The smart thing to do would be to make the bezels as small as possible, in order to maximize screen size for a particular physical size, which is even more important for a tablet than a notebook, then have it automatically turn the outer ~1" into "dead" space, i.e. a digital bezel, as needed. And allow the user to both customize the size and manually enable/disable it. Then you get best of both worlds and let each user decide what works best for them. No idea why nobody has bothered doing that, especially since I'm pretty sure I saw something about it years ago.
As for the fact it's essentially unchanged, that's been the case throughout the history of the series. Each generation has been almost identical to the last, with the changes limited to slightly better internals and the rare minimal port changes. The only actual, useful difference with the SP8 vs my SP3, aside from the obvious of being faster (but still no Ryzen), is the USB-C port. That's it, one port. At least that somewhat fixes the biggest problem with the tablet, which, as with everything else, remains unchanged (of course): the proprietary charger. Myself and many others have had the cord fail rather quickly, which of course means the ability to charge is severely impaired or even lost entirely, and requires buying a new charger that will inevitably fail as well. They really need to abandon their proprietary charger and just replace the port with one or two additional USB ports (should ideally have two C and one to two A), especially since they refuse to redesign their charger. Seriously M$, how hard would it be to just make it more robust by adding some stress relief and make the wire between the brick and the tablet replaceable without having to replace the brick??